# A048743 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 1
5 12
6 6
7 1
8 42
9 108
10 24
11 1
12 120
13 900
14 960
15 120
16 1
17 310
18 5400
19 15600
20 9000
21 720
22 1
23 756
24 27090
25 168000
26 252000
27 90720
28 5040
29 1
30 1778
31 121716
32 1428840
33 4410000
34 4021920
35 987840
36 40320
37 1
38 4080
39 508200
40 10442880
41 58388400
42 106686720